General theory of instabilities for patterns with sharp interfaces in reaction-diffusion systems

Details General theory of instabilities for patterns with sharp interfaces in reaction-diffusion systems General theory of instabilities for patterns with sharp interfaces in reaction-diffusion systems

1996-03-06

arxiv.org/abs/patt-sol/9603001v1

Phys. Rev. E 53, 3101 (1996).

Nonlinear Sciences

Pattern Formation and Solitons

21 pages (RevTeX), 8 figures (Postscript). To appear in Phys. Rev. E (April 1st, 1996)

Scientific paper

10.1103/PhysRevE.53.3101

An asymptotic method for finding instabilities of arbitrary $d$-dimensional large-amplitude patterns in a wide class of reaction-diffusion systems is presented. The complete stability analysis of 2- and 3-dimensional localized patterns is carried out. It is shown that in the considered class of systems the criteria for different types of instabilities are universal. The specific nonlinearities enter the criteria only via three numerical constants of order one. The performed analysis explains the self-organization scenarios observed in the recent experiments and numerical simulations of some concrete reaction-diffusion systems.

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